JPH04167827A - Radio receiver - Google Patents

Abstract

PURPOSE:To attain display and revision of a broadcast station name automatically by reading a location data of a transmission antenna stored in advance based on an identification signal of a radio broadcast during reception and displaying a name of a transmission station of a transmission antenna closest to a current position data. CONSTITUTION:When a reception section 7 receives a broadcast whose frequency is f1, a radio control section 9 references a broadcast station table by interrupt for each prescribed time and reads data of plural broadcast stations whose frequency is f1 sequentially. Then an arithmetic section 13 calculates a distance between the current position and a location of a transmission antenna whose frequency is f1 based on a longitude and a latitude data read from a GPD receiver 12. When the calculation is finished, the station name data of the broadcast station whose distance is closest between the current position and the location of the transmission antenna is transferred to a display device 5, in which the data is displayed. Thus, the display of the broadcast station name and the revision of the display are implemented automatically.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a generally used radio receiving device or a radio receiving device mounted on a moving body such as a car to receive radio broadcasts such as AM broadcasts and FM broadcasts. .

BACKGROUND OF THE INVENTION FIG. 6 schematically shows a conventional radio receiving apparatus capable of displaying the name of a receiving broadcasting station. In FIG. 6, 5 is a display device that displays the receiving frequency, the name of the receiving broadcasting station, etc., 6 is an antenna, 7 is a PLL synthesizer receiving section (receiving section), 8 is a spinon, 9 is a radio control section, and 10 is a It is an operation part,
By operating a preset button on the operation unit 10, the reception frequency is switched, and the reception frequency and broadcasting station name displayed on the display device 5 are changed.

The above-mentioned conventional radio receiving device has data in the memory of the radio control unit 9 of the broadcasting station names corresponding to the reception frequency by region (for example, Hokkaido, Tohoku, Kanto, Tokai, etc.), and currently By inputting the location using the region key on the operation section 10, the broadcasting station name data is read from the memory based on the current reception frequency and the inputted region data, and the broadcasting station name is displayed on the display section 5.

Problems to be Solved by the Invention However, in the conventional radio receiving device described above, in order to display the name of a broadcasting station, the region of the current location must be entered by operating the region key on the operation unit 10, making the operation complicated. There was a problem.

The present invention solves the above-mentioned conventional problems, and provides a radio receiving device that can automatically display and change the name of a broadcasting station without requiring manual operation.

Means for Solving the Problems In order to achieve the above objects, the present invention provides a radio receiving means that receives radio broadcasts and outputs an identification signal corresponding to the received broadcast such as a receiving frequency, and a current position of the radio receiving means. a position detection means for detecting the identification signal; a storage means storing transmitting antenna location data and broadcasting station name data of each broadcasting station corresponding to the identification signal; a calculation means for calculating the distance between the current position and the transmission antenna position based on the transmission antenna location data read from the storage means and the current position data output from the position detection means; The present invention is characterized by comprising display means for displaying the name of the broadcasting station closest to the station within the calculated distance.

Operation The present invention has the above-mentioned configuration, and reads the transmitting antenna location data from the storage means based on the identification signal of the radio broadcast currently being received output from the radio reception means,
Based on this transmitting antenna location data and the current location data output from the position detecting means, the calculation means calculates the distance between the current location and the transmitting antenna location, and the name of the broadcasting station of the nearest transmitting antenna. is displayed on a display means.

EXAMPLE An example of the present invention will be described below with reference to the drawings. FIG. 1 shows an in-vehicle radio receiving device according to an embodiment of the present invention. 1 is the device main body, 2 is the front plate of the device main body 1,
3 is an operation button that doubles as a power switch and volume control, 4 is a cassette insertion slot for inserting a cassette, and 5 is a display that displays the reception frequency band (AM, FM), reception frequency, broadcasting station name, etc. when receiving radio, and displays the cassette A display device that displays the operating mode, tape running direction, etc. during deck operation;
f is a preset channel selection button, g-1 are operation buttons for controlling various operations of the radio receiver or cassette deck, and m and n are operation buttons for adjusting sound quality.

FIG. 2 shows the configuration of the main parts of this embodiment. In FIG. 2, 6 is a radio antenna, 7 is a PLL synthesizer receiving section (hereinafter referred to as the receiving section), and this receiving section 7 is composed of a tuner, a demodulation circuit, a power amplifier, and the like. 8 is a speaker, and 9 is a radio control section for controlling the receiving section 7, and this radio control section 9 is composed of a microcomputer and the like. 5 is the display device, 10 is the first
This is an operation unit equipped with operation preset channel selection buttons a to f and various other operation buttons g to 1 in the figure, and this operation unit]O
When the preset channel selection button or the operation button is operated, a control signal is transferred from the radio control section 9 to the reception section 7 and the display section 5, and the reception frequency, display, etc. are controlled. 11 is an antenna that receives signals from a plurality of artificial satellites (hereinafter referred to as satellites); 12 is a GPS that calculates the current position of the vehicle based on the received signals received by the antenna and outputs current position data; Global position
ngSystem ) receiving device, and this GPS receiving device 12 includes an amplifier circuit that amplifies the received signal, a mixing circuit that mixes the oscillation output of the local oscillator circuit and the received signal, an intermediate amplifier circuit, a detection circuit, a signal processing circuit, etc. configured,
Based on the orbit data, arrival time information, etc. of each satellite included in the received signal, current position data of the vehicle, such as latitude data and longitude data of the current position, is calculated and output. Reference numeral 13 denotes a calculation section consisting of a microcomputer, etc., and -6 = is stored in this calculation section 13, including data regarding a plurality of broadcasting stations, that is, frequency data of each broadcasting station, transmission angle of each broadcasting station, and the location (latitude and latitude) of each broadcasting station. , longitude) data, station name data of each broadcasting station, etc. are stored in a memory (broadcasting station table) in correspondence with each other. FIG. 3 shows an outline of the broadcast station table. This broadcast station table contains data of multiple broadcast stations (frequency f1, latitude data X, longitude data y of the transmitting antenna location)
1 station name data N) are stored in descending order of frequency f. The broadcast station table also includes data on the same frequency with different station names. For example, in the example shown in FIG. 3, three broadcasting station data f1■, fI■,
This indicates that f1■ is included. Note that the order of storage in the broadcast station table may be in descending order of frequency f, or may be random regardless of the magnitude of frequency. ” The two-leg calculation unit 13 determines the name of the broadcasting station currently being received based on the current reception frequency transferred from the reception unit 7 and the current position data output from the GPS reception device 12, and determines the name of the broadcasting station currently being received. The station name is displayed on the display device 5.

FIG. 4 shows an example of a display on the display device 5. The display device 5 displays a reception frequency band (AM, FM), a reception frequency, and a broadcast station name C.

Next, the operation of the above embodiment will be explained with reference to FIG. FIG. 5 shows an operation flow for displaying a broadcasting station name, which is activated by an interrupt in the arithmetic unit 13 at regular intervals. Assume that the receiving unit 7 is currently receiving a broadcast station of frequency f1. By interrupting at regular intervals, the broadcasting station table is first referred to in step A, and the first broadcasting station data of the plurality of broadcasting station data of frequency f1 in the broadcasting station table, that is, f1■ of the broadcasting station table in FIG. The broadcasting station data (fl■, xl, y' N N ') is read out. Next, it is determined whether the frequency of the broadcast station data read in step B is frequency f1. Since the frequency of the broadcast station data read in step A is fl, the answer in step B is determined to be YES. Next, in step C, the current position data (latitude data x
p1 longitude data yp), and the latitude data X1 and longitude data yI of the data read from the broadcasting station table, the distance between the location of the transmitting antenna of frequency f1■ is calculated. Next, in step D, the second broadcast station data (fl■, X2, y2, N2) of frequency f+ is read from the broadcast station table. Next, in step B, it is determined whether the frequency of the broadcast station data read out in step D is frequency f1.

Since the frequency of the second broadcast station data read in step D is f+, the answer in step B is determined to be YES.

Next, in step C, the current position data read from the GPS receiver 12 (latitude data
p) and the location of the transmitting antenna of the frequency f1■ is calculated from the latitude data x2 and longitude data y2 of the data read from the broadcast station table. Next, in step D, the third broadcasting station data (f
l■, X3, y3, r3, N3). The same operation is repeated below. Note that when the fourth broadcast station data is read from the broadcast station table, it is determined in step B whether the frequency of this broadcast station data is fl, but the frequency of the fourth broadcast station data read is f2. Therefore, the determination in step B is negative and the process proceeds to step E. Step E
Then, among the distances calculated in step C, the station name data of the broadcasting station whose distance between the current position and the transmitting antenna location is the closest is transferred to the display device 5 to display the broadcasting station name. In the above embodiment, the current position is at the same frequency f+
If it is determined that the distance between the broadcasting station with the frequency f+■ is the closest among the three broadcasting stations, the station name data N1 of the frequency f1■ is transferred to the display device 5, and this broadcasting station name Nl
is displayed. Note that if there are multiple broadcasting stations with the same frequency, the name of the closest broadcasting station is displayed as shown in FIG. In addition, the frequency ft
When the broadcast is received and the station name N1 is displayed,
If it is determined that the distance between the current location and the transmitting antenna location of another broadcasting station on the same frequency is the closest,
The display of the broadcasting station name is changed. Also, the receiving section 7
When the receiving frequency is changed, the display is changed to the name of the broadcasting station corresponding to the changed frequency by the same operation as described above.

As described above, according to the above embodiment, it is possible to automatically display and change the display of the broadcasting station name of the broadcast currently being received without any operation.

Note that in the above embodiment, in order to detect the current position, G
Although the PS receiving device 12 is used, it is not limited to the GPS receiving device, and various current position detecting devices used in navigation devices and the like may be used. Furthermore, in the above embodiment, the reception frequency f output from the radio control section 9 is used as an identification signal for referring to the broadcast station table, etc., but it is set in the variable frequency divider of the PLL of the reception section 7. The frequency division ratio may be used as the identification signal, and the lowest frequency is 1, and the channel separation (AM is 9
KH2, FM is O, IMH2) 2°3.4...
It is also possible to set a ranking as . . . and refer to the broadcasting station table using this ranking as an identification signal.

Effects of the Invention The present invention has the above-described configuration, and has the advantage that the name of the receiving broadcasting station can be automatically displayed and the name of the receiving broadcasting station can be changed without any operation.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a front view of a radio receiving device according to an embodiment of the present invention, FIG. 2 is a front view of the main parts of the device, FIG. 4 is a diagram showing an example of the display of the same device, FIG. 5 is a diagram showing the operation flow of the same device, and FIG. 6 is a block diagram of a conventional radio receiving device. ■...Device body, 2...Front panel, 3...Operation buttons,
4...Cassette insertion slot, 5...Display device, 6...
Antenna, 7... PLL synthesizer receiving section, 8...
-Speaker, 9...Radio control unit, 10...Operation unit, 11...Antenna, 12...GPS receiving device, 1
3...Arithmetic section.

Claims (2)

[Claims] (1) a radio receiving means that receives a radio broadcast and outputs an identification signal corresponding to the received broadcast such as a received frequency; a position detecting means that detects the current position of the radio receiving means; and a position detecting means that corresponds to the identification signal. Storage means in which transmitting antenna location data and broadcasting station name data of each broadcasting station are stored, and transmitting antenna location data and said location read from said storage means based on an identification signal output from said radio receiving means. a calculation means for calculating the distance between the current position and the transmitting antenna position based on the current position data output from the detection means; and broadcasting of the nearest broadcasting station within the distance calculated by the calculation means. A radio receiving device comprising display means for displaying a station name. (2) The radio receiving device according to claim 1, wherein the identification signal output from the radio receiving means is a ranking number corresponding to the magnitude of the receiving frequency.